batewosi

代码说明：

  该程序主要针对机械等信号进行低通滤波。内包含了一个例子，并对巴特沃思滤波器的主要设计函数进行了详细的说明。(The program mainly for machinery, low-pass filtered signal. Contains an example, and the Butterworth filter is designed primarily for a detailed description of the function.)